1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
FrozenT [24]
3 years ago
14

Suppose a culture containing 2*108 bacteria was exposed to ionizing radiation sufficient to kill 99.99% of the cells. calculate

the number of bacteria you expect to survive this treatment.
Biology
1 answer:
Kaylis [27]3 years ago
7 0
<span>The culture contains 2*10^8 bacteria before it was exposed to ionizing radiation which kills 99.99% of the bacteria. The number of bacteria left after the radiation would be:

final number= initial number * (100%- radiation kill rate)
</span>final number= 2*10^8<span>  *(100%-99.99%)
</span>final number= 2*10^8  *(0.01%)
final number= 2*10^8  * 10^-6
final number= 2*10^(8-6)
final number= 2*10^2
You might be interested in
Killer whales
erica [24]

Answer: Decomposers

Explanation:

7 0
2 years ago
A particular species of fish were split by the formation of the Isthmus of Panama a long time ago. The fish developed changes in
Aloiza [94]
<span>This is speciation. In this process, two distinct species are formed through the intervention of some means such as differing environments or locations. This is done typically as a way of staying evolutionarily competitive in the area in which the species resides. The new species would be the exemplar of that which is best suited to the new conditions.</span>
5 0
3 years ago
Read 2 more answers
Mendel formed a possible explanation for the outcomes he observed in pea plants. Mendel formed a___________.
Hitman42 [59]
<span>Mendel formed a possible explanation for the outcomes he observed in pea plants. Mendel formed a <em>"Hypothesis".</em> 

I hope that helped!</span>
6 0
3 years ago
Read 2 more answers
It is best to add just enough dye to cover the smear so reagents are not wasted. If the
nika2105 [10]
False the goal was to cover the smear if it evaporates the smear is uncovered meaning the goal wasn’t meant. It could also be true though because you could just apply more dye to cover it up. So it might be true
8 0
2 years ago
Growth rates are ___________.
Rudiy27
Either A. or E. I’m thinking E.
5 0
3 years ago
Other questions:
  • In the 1928 Griffith experiment he was able to show that there is a transforming principle. Describe the 4 scenarios of these ex
    12·2 answers
  • What type of blood is carried by the four major blood vessels entering/leaving the heart?
    13·1 answer
  • Compare and contrast visible light and ultra violet rays coming from the sun. A) Ultraviolet waves are energy waves and light is
    5·1 answer
  • How are control and variable related
    5·1 answer
  • Residents of three villages with three different sources of water supply were asked to participate in a survey to identify chole
    6·1 answer
  • Suppose the Moon rotated on its axis just as quickly as Earth. Would we still always see the same side of the Moon from Earth? E
    10·1 answer
  • APlEWAAASEE HELP ME AAA
    9·2 answers
  • The USDA has approved over 10,000 genetically engineered crops.<br> t or f
    15·2 answers
  • What are the basic name of the elements that make-up a Macromolecule?
    9·1 answer
  • Help‎‎‎‎‎‎‎‎‎‎ ‎‎‎‎‎‎‎please...........................................................
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!